Generating Music from Basics

In this post, I am discussing on music notes, frequencies and the science behind it. Along the way I shall live demo you what I am talking about. For the demos, I am using an arduino nano to generate PWM signals (square-wave) and a cheap buzzer speaker (Piezoelectric). It is possible to use a headphone …

“Where am I” with GPS

Today I am going to talk about GPS and how you can harness its power for mobile robots. We shall see how it works in some detail and especially from a robotics point-of-view. Next, we will look at some GPS modules/ GPS ICs out there and they can be used. I have with me a …

Wireless Communication from Scratch

All we 90s kids have seen mobile phones taking over our lives. We have been taught in school that Electromagnetic waves carry our signals. In school, like most people, I too accepted that mobile phones work with electromagnetic waves, no further thought given..!! The objective of this blog post is to give a brief historical …

Controlling Drone Motors

In this blog post, we shall deal with controlling drone motors and some other hardware devices. A lot of hardware like the ESC, servo motors, piezoelectric speakers to name a few are designed such that they can be controlled with PWM (Pulse Width Modulation). The basic crux is that PWMs are square waves and the …